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Proceedings Paper

Alignment and distortion-free integration of lightweight mirrors into meta-shells for high-resolution astronomical x-ray optics
Author(s): Kai-Wing Chan; William W. Zhang; Mark J. Schofield; Ai Numata; James R. Mazzarella; Timo T. Saha; Michael P. Biskach; Ryan S. McClelland; Jason Niemeyer; Marton V. Sharpe; Lawrence G. Olsen
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Paper Abstract

High-resolution, high throughput optics for x-ray astronomy requires fabrication of well-formed mirror segments and their integration with arc-second level precision. Recently, advances of fabrication of silicon mirrors developed at NASA/Goddard prompted us to develop a new method of mirror integration. The new integration scheme takes advantage of the stiffer, more thermally conductive, and lower-CTE silicon, compared to glass, to build a telescope of much lighter weight. In this paper, we address issues of aligning and bonding mirrors with this method. In this preliminary work, we demonstrated the basic viability of such scheme. Using glass mirrors, we demonstrated that alignment error of 1” and bonding error 2” can be achieved for mirrors in a single shell. We will address the immediate plan to demonstrate the bonding reliability and to develop technology to build up a mirror stack and a whole “meta-shell”.

Paper Details

Date Published: 18 July 2016
PDF: 8 pages
Proc. SPIE 9905, Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray, 99056X (18 July 2016); doi: 10.1117/12.2232560
Show Author Affiliations
Kai-Wing Chan, Univ. of Maryland Baltimore County (United States)
NASA Goddard Space Flight Ctr. (United States)
William W. Zhang, NASA Goddard Space Flight Ctr. (United States)
Mark J. Schofield, Stinger Ghaffarian Technologies, Inc. (United States)
NASA Goddard Space Flight Ctr. (United States)
Ai Numata, Stinger Ghaffarian Technologies, Inc. (United States)
NASA Goddard Space Flight Ctr. (United States)
James R. Mazzarella, Stinger Ghaffarian Technologies, Inc. (United States)
NASA Goddard Space Flight Ctr. (United States)
Timo T. Saha, NASA Goddard Space Flight Ctr. (United States)
Michael P. Biskach, Stinger Ghaffarian Technologies, Inc. (United States)
NASA Goddard Space Flight Ctr. (United States)
Ryan S. McClelland, Stinger Ghaffarian Technologies, Inc. (United States)
NASA Goddard Space Flight Ctr. (United States)
Jason Niemeyer, Stinger Ghaffarian Technologies, Inc. (United States)
NASA Goddard Space Flight Ctr. (United States)
Marton V. Sharpe, Stinger Ghaffarian Technologies, Inc. (United States)
NASA Goddard Space Flight Ctr. (United States)
Lawrence G. Olsen, NASA Goddard Space Flight Ctr. (United States)


Published in SPIE Proceedings Vol. 9905:
Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray
Jan-Willem A. den Herder; Tadayuki Takahashi; Marshall Bautz, Editor(s)

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